Combined writing board, calculator and writing instrument for attachment to an automobile steering wheel



FIG. 1 is a front elevational view of a combined writing board, calculator and writing instrument for attachment to an automobile steering wheel showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view; and,

FIG. 7 is a top plan view thereof.

FIGS. 2 through 7 have been drawn to an enlarged scale with respect to FIG. 1. The steering wheel depicted by means of broken lines in FIG. 1 is shown for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a combined writing board, calculator and writing instrument for attachment to an automobile steering wheel, as shown and described. 